{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:26:01.535560", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2021-Jun-16_to_2021-Jun-19_301.0_-39.5"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2021060000607}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "June 16 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 19 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 104603.91780354649}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Argentina"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America", "S.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": ["South Atlantic Ocean"]}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": -39.5}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 301.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "301.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 298.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 302.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -41.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -37.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.25, -40.0], [-60.03, -39.47], [-59.68, -39.32], [-59.53, -38.97], [-59.0, -38.75], [-58.75, -38.85], [-58.5, -38.75], [-57.97, -38.97], [-57.75, -39.5], [-57.85, -39.75], [-57.75, -40.0], [-57.97, -40.53], [-58.32, -40.68], [-58.35, -40.75], [-58.25, -41.0], [-58.35, -41.25], [-58.25, -41.5], [-58.47, -42.03], [-59.0, -42.25], [-59.53, -42.03], [-59.75, -41.5], [-59.65, -41.25], [-59.75, -41.0], [-59.65, -40.75], [-59.68, -40.68], [-60.03, -40.53], [-60.25, -40.0]]]]}, "2021-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.65, -40.25], [-61.75, -40.0], [-61.65, -39.75], [-61.75, -39.5], [-61.53, -38.97], [-61.18, -38.82], [-61.03, -38.47], [-60.5, -38.25], [-60.25, -38.35], [-60.18, -38.32], [-60.03, -37.97], [-59.68, -37.82], [-59.53, -37.47], [-59.18, -37.32], [-59.03, -36.97], [-58.5, -36.75], [-57.97, -36.97], [-57.75, -37.5], [-57.85, -37.75], [-57.82, -37.82], [-57.75, -37.85], [-57.5, -37.75], [-56.97, -37.97], [-56.75, -38.5], [-56.85, -38.75], [-56.75, -39.0], [-56.85, -39.25], [-56.75, -39.5], [-56.97, -40.03], [-57.32, -40.18], [-57.47, -40.53], [-57.82, -40.68], [-57.97, -41.03], [-58.32, -41.18], [-58.35, -41.25], [-58.25, -41.5], [-58.47, -42.03], [-59.0, -42.25], [-59.5, -42.04], [-60.0, -42.25], [-60.25, -42.15], [-60.5, -42.25], [-61.03, -42.03], [-61.18, -41.68], [-61.53, -41.53], [-61.75, -41.0], [-61.65, -40.75], [-61.75, -40.5], [-61.65, -40.25]]]]}, "2021-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.65, -40.25], [-61.75, -40.0], [-61.65, -39.75], [-61.75, -39.5], [-61.53, -38.97], [-61.18, -38.82], [-61.03, -38.47], [-60.5, -38.25], [-60.25, -38.35], [-60.18, -38.32], [-60.03, -37.97], [-59.68, -37.82], [-59.53, -37.47], [-59.18, -37.32], [-59.03, -36.97], [-58.5, -36.75], [-57.97, -36.97], [-57.75, -37.5], [-57.85, -37.75], [-57.82, -37.82], [-57.75, -37.85], [-57.5, -37.75], [-56.97, -37.97], [-56.75, -38.5], [-56.85, -38.75], [-56.75, -39.0], [-56.85, -39.25], [-56.75, -39.5], [-56.97, -40.03], [-57.32, -40.18], [-57.47, -40.53], [-57.82, -40.68], [-57.97, -41.03], [-58.32, -41.18], [-58.35, -41.25], [-58.25, -41.5], [-58.47, -42.03], [-59.0, -42.25], [-59.5, -42.04], [-60.0, -42.25], [-60.25, -42.15], [-60.5, -42.25], [-61.03, -42.03], [-61.18, -41.68], [-61.53, -41.53], [-61.75, -41.0], [-61.65, -40.75], [-61.75, -40.5], [-61.65, -40.25]]]]}, "2021-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.65, -40.25], [-61.75, -40.0], [-61.65, -39.75], [-61.75, -39.5], [-61.53, -38.97], [-61.18, -38.82], [-61.03, -38.47], [-60.5, -38.25], [-60.25, -38.35], [-60.18, -38.32], [-60.03, -37.97], [-59.68, -37.82], [-59.53, -37.47], [-59.18, -37.32], [-59.03, -36.97], [-58.5, -36.75], [-57.97, -36.97], [-57.75, -37.5], [-57.85, -37.75], [-57.82, -37.82], [-57.75, -37.85], [-57.5, -37.75], [-56.97, -37.97], [-56.75, -38.5], [-56.85, -38.75], [-56.75, -39.0], [-56.85, -39.25], [-56.75, -39.5], [-56.97, -40.03], [-57.32, -40.18], [-57.47, -40.53], [-57.82, -40.68], [-57.97, -41.03], [-58.32, -41.18], [-58.47, -41.53], [-59.0, -41.75], [-59.25, -41.65], [-59.32, -41.68], [-59.47, -42.03], [-60.0, -42.25], [-60.25, -42.15], [-60.5, -42.25], [-61.03, -42.03], [-61.18, -41.68], [-61.53, -41.53], [-61.75, -41.0], [-61.65, -40.75], [-61.75, -40.5], [-61.65, -40.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.959906127007571}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.7499395249279717}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.360812534387492, 7.607881782575134, 7.720470145221668, 7.513132747538236]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.59883849475824, 3.114585176380899, 3.4483764678862485, 3.6772930130886152]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.1701622688948845, -2.8524663789838693, -2.6775771461032334, -2.826939086278988]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.3061746120121143, -4.959906127007571, -4.558689436881593, -4.275361820137675]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4333386632659626, -1.6725985961682803, -1.5872858522458877, -1.6880393496269572]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4764570979067186, -1.9441427474919124, -1.8696469699862532, -2.048846475632923]}}